26685104847 has 8 divisors (see below), whose sum is σ = 35616561456. Its totient is φ = 17771859072.

The previous prime is 26685104753. The next prime is 26685104861. The reversal of 26685104847 is 74840158662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26685104847 - 2²⁰ = 26684056271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26685104847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26685105847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4549288 + ... + 4555149.

It is an arithmetic number, because the mean of its divisors is an integer number (4452070182).

Almost surely, 2^26685104847 is an apocalyptic number.

26685104847 is a deficient number, since it is larger than the sum of its proper divisors (8931456609).

26685104847 is an equidigital number, since it uses as much as digits as its factorization.

26685104847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9105417.

The product of its (nonzero) digits is 2580480, while the sum is 51.

The spelling of 26685104847 in words is "twenty-six billion, six hundred eighty-five million, one hundred four thousand, eight hundred forty-seven".